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It is reported that the average annual salary of a marketer is RM79,500. A researcher wishes to test the claim that the annual salary is less than RM79,500. A random sample of 8 marketers is selected, and their annual salaries (in RM) are shown as follows:
82000 68000 70200 75600
83500 64300 78600 79000
Test the hypothesis at α = 0.10 that the average annual salary for a marketer is less than RM79,500.
Grace claims, "the probability of rolling a sum of 12 when you roll two dice is 1/11 , because two dice have sums 2 through 12 which means there are 11 possible sums." How do you respond?
a sample of nine fastballs thrown by a certain pitcher were measured at speeds of 94 87 80 91 85 102 85 80 93 miles per
Assuming we are sampling without replacement (that is, we don't replace the first coin before taking the second) write down the sample space of all ordered.
Recent medical research demonstrated there is a strong (r=.60) correlation between the excessive weight and incidences of breast cancer. How can we interpret this statement?
Determine the mean and standard deviation of the time it takes for a randomly selected student to finish the aptitude test.
A study is conducted to test whether rewarding children in a cheer camp intermittently (4 times during the camp) or once at the end of the camp differentially.
The proportion of automobile commuters in a given neighborhood of a large city is unknown. A random sample of 50 households is taken, and 38 automobile commuter
If 10 workers who have recently changed jobs and had 401(k) plans with accounts less than $5,000 are randomly sampled, what is the probability that exactly 6.
Joe Coledge is the third-string quarterback for the University of Lower Alatoona. The probability that Joe gets into any game is 0.40.
For the data on state-dependent memory in problem 2, plot the cell means using a bar graph. Compute df, MS, and F values. Arrange these in a summary table and note the appropriate critical values.
1. What is meant by the term repeatable error? 2. What is meant by the term lrue king error?
suppose you have a bag of 150 marbles 52 are all red 23 are all green 40 are all blue 9 are red and green 14 are green
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